Electric railroad-gate.



No. 822,958. PATENTED JUNE 12, 1906.

A. KNOBEL. ELECTRIC RAILROAD GATE,

APPLIOATION FILED D3030. 1905.

3 SHEETSSHEBT l.

PATENTED JUNE 12, 1906.

A. KINQBBL. ELECTRIC RAILROAD GATE.

1 APPLIOATIOK FILED 13110.30, 1905.

3 SHEETS-SHEET 2 PATENTED JUNE 12, 1906.

A. KNOBBL. ELBGTRIC RAILROAD GATE.

APPLIGATION FILED DBO.30, 1905.

3 SHEETS-BEBE! 3.

UNITED STATES OFFICE.

ABRAHAM KNOBEL, OF LOUISVlLLE, KENTLUUKY, ASSIGNOR T ROGERS, BIDGEWAY AND FAITH, OF LOUISVILLE, KENTUCKY, A COPARTNER- SHIP.

ELECTRIC RAILROAD-GATE.

Specification of Letters Patent.

ratented June 12, 1906.

Application filed December 30, 1905. Serial No. 29%91'}.

To all whom it may concern:

Beit known that I, ABRAHAM KNOBEL, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentuck have invented a new and useful Electric railroad-Gate, of which the followin r is a specification.

his invention relates especially to railway-crossing gates; and the objects of my :0 improvement are simplicity of construction, comparative inexpensiveness of manufacture, safety, economy, and ease of 0 oration. These objects I attain by means of t e 1nechanism illustrated in the accompanying draws, in Which igurc 1 is a side elevation with a side of the casin and the near side of the ate removed' ig. 2, an edge view with t e near edge oi the casing removed; Fig: 3, a side as elevation showing the manner of gearing the two gates together; Fig. 4, a Ian View with the top of the casing remove and Fig. 5 a plan view of the switch.

Similar reference-numerals refer to similar parts throhghout the several views of the drawings.

The casing 1, the longer gate 2, and the shorter gate 3 constitute the body of the invention. The gate 2 is mounted on ,a-pivotshaft 4, which passes transversely through the upper part of easing 1. The shorter or sidewa k gate 3 is mounted on studs 16 and 17 on the sides of easing l. A gear-wheel 14 is mounted on shaft 4 on the outside on one 3 5 side of the casing, and a corresponding gcarwheel of the same size and. moshing with gear-wheel 14 is mounted on stud i6 and rigldl secured to gate 8.

ll; will be understood that as gate 2 is opened or closed shaft 4 and gear-wheel l4, rigidly mounted thereon, are rotated, and by means of gear-wheel 15 ote 3 is opened or closed simultaneously. Vithin casing 1 is the gearing for operating the gate. It is driven by the eleotromotor 18, which is laced upon a shelf 19 within the casing. he shaft 12 of the electromotor is extended, and its outer {and works; inajournabhox 11, secured to one side of easing I. On shaft 12 is mounted or integral a worm 10, which meshes with a worm-wheel 8, which in turn is secured on a counter-shaft 9. A pinion 7 is also mounted on counter-shaft 9 and meshes with a driving-gear 16 loosely mounted on pivot-shaft 4. her 5 is rigidly mounted on pivot-shaft 4 and disposed in frictional contact with gear 6 and is adjustable by means of a set-screw 20.

The electromotpr 18 is electrically connected with a battery or other source of power through a starting and current-roversmg switch 18, which may be located in the watcluhouse or any suitable distant place. The electrornotor is referahly of the serieswound type and pro crably driven by a pri mary battery which may be placed in the Watch-house The gate 2 is provided at its inner end with counterweights 13, so that it is perfectly balaneed, and thus requires very little power to operate.

The switch 18 may be of any form usually used and need therefore not be minutely dcscrihed. It is provided with a lever 24, a handle 22, and stops to limit the motion of the handle, as shown in Fig. 5.

Theo eration of the device will now be understood If the gate is to be closed, lever 24 is pushed around by the operator to the proper stop, as indicated, which starts the motor in the direction to rotate shaft 4, so as to lower the free ends of the gates. If the gate is to be opened, lever 24 is pushed around to the opposite stop, as indicated, which causes the motor to run in the 0 pcsite direction and raises the free ends 0 the gates. When lever 24 is placed between the steps or on the neutral point, the motor-sir cult is opened and the gate remains at rest. It will be seen that with this arrangement the operator in the watch-house has complete control of the "etc. If he has started it toward the closctl pusitlon and a vehicle should be passing, he may immediately re verse the motor and raise the ute or sto it and hold it stationary until tllo vehicle lies passed. Any number of those gates may be operated simultaneously by conlieotin them with a single switch, or a switch may in provided for each gate or [or each set of gates, as when there are gates dis )1 mod on opposite sides ol a broad street and on both sides of the railroad -tracks. The details'ul" armh ing the electric connections will be readily planned by those skilled in the art pertaining to the device.

A spring-clutch mem- It will be understood that the operator need not be careful to stop the motor after the gate has reached the closed. or horizontal position, because the pivoted le r 21 near the end of the gate resting upon t 1e surface of the street )revents the gate from moving farther. The gearing within the casing 1 will not be in jured by the force of the motor after the ate has come to a standstill, because the riction-clutch 5 will slip on gear 6, allowing the friction member 5 to stand still. The same will occur when the gate has reached the perpendicular position when the portion carryin the counterweights 13 will strike a s ringufier 23 and stop the gate from furt wer movement. In this case also the frictiomclutch will act to revent destruction or derangement of t e gearing. The clutch member 5 may be adjusted against gear 6, so as to produce sufficient force to opcrate the gates a ainst wind or the accumu lation of snow an ice or to provide for other exi encies.

aving thus described my invention, so

that any one skilled in the art pertaining 25 thereto may make and use it, I cla1m- 1. In an electric-driven road-gate, the combination of a casing, a pivot-shaft, a driving-gear loosely mounted on said pivotshalt, a friction member mounted on said pivot-shaft to be 0 erated bysaid drivinggear, a counter-she t, pinion on said counter-shaft mcshin wit said drivin -gear, a worm-gear on sai C0l1l 1Ue1-Shd.l 11, am a worn meshing with said wormear direct-connectd rvith a motor-shaft, su stantially as speci- 2. In a road-gate, the combination of a pivoted gate, a Yivotshaft on which said gate is mounted, rivingear loos'elymouut- 40 ed on said pivot-shafi mi a friction member rigidl mounted on said pivot-shaftin frictiona contact with said driving-gear ABRAHAM KNOBEL.

Witnesses:

F. H. KAPPA, ANNA WALTER. 

